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AUGUSTUS C. MELTON, JR., 01E' MACON, GEURGIA.

Specication of Letters Patent. i Patientdl dimmi.. 23, 191'?.

' Application tiled July'S, 1916. Serial No. 107,299.

To all whom t may concern:

Be it known that l, AUGUSTUS C. FnLToN, Jr., a citizen of the lUnited States, and a resident of Macon, in the county of lBibb, in the State of Georgia, have invented a new and useful Improvement in Crematories, of which the following is a specification.

My invention relates to improvements in crematories, more particularly to garbage Crematories and it .consists in the combinations, constructions and arrangements herein described and claimed. l

An object of in which the burning of the material is accomplished at a minimum expense and in such a manner as to completely consume the combustible portions of the material and leaving very little ash.

A further object of my invention is to provide a device of the type described, in which the air for maintaining combustion is pre-heated to a hi h degree before being de` livered tothe com ustion chambers.

A further object is to provide novel means for cooling a cast iron floor of the night-soil pan and conserving the heat abstracted from the pan in the cooling thereof.

@ther objects and advantages will appear in the following specification and the novel features of the invention will be particularly K pointed out in the appended claims -My invention is illustrated in the accompanying drawings, forming a part of this application, and in which:

Figure 1 is a horizontal section along the line 1 1 of Fig. 3; Fig. 2 is-a section along the line 2 2 of Fig.. 1; Fig. 3 is a section along the lineK 3 3 of Fig. 1; Fig. 4 is a section along the line 1 4 of Fi 3; Fig. 5 is a section along the line 5 o Fig. 3.

Referring now particularly to Figs. 1 to 5, inclusive, l have shown therein a furnace having exterior walls 1, inclosing a combustion chamber having a grate 2, beneath which is an ash pit 3. rlhe combustion chamber is provided with an arched roof 4l. Disposed alongside of the grate 2 and slightly below the level of the' latter is the ni ht soil pan 5. As will be seen from Fig. 3, is preferably consists of an upper layer of refrae'tory material 5, such as fire clay plates or similar material, which forms a protective covering for cast iron plates 5l'. The latter are spaced apart from similar plates 5, by means of spacing lugs 5d. At one side of the combustion chamber and opposite the the invention is to provide a garbage crematory where it is delivered to the fuel on the -night-soil pan disposed grate are openings 6. These openings communicate with fiues see Fig. 2, which lead to the space 8 underneath the night soil pan. Partitions 9 extend into this Space so as to cause the hot gases to take circuitous paths before reaching the stack 10. These partitions are shown in dotted lines in Fig. 1 and in full lines in Fig. 2. As will be seen from Fig. 4, there is an air intake 11 at onev end of the furnace which communicates with the space between the upper and lower cast iron plates 5b and 5c. At the opposite end of the furnace is an upwardly extending flue 12, through which the airppasses into the space 13 between the firobrick arch 4 and the jacket 14. From thence it passes downwardly through the flue 15 (see Fig. 5) and is delivered underneath the grate 2. lln Fig. 3, I'have shown a chute 16, by means of which the furnace may be charged, while a chute 17 is the night soll chute. The air is passed through the air intake 11, and thence through the space between the upper and lower plates 5b 'and 5c, and then inwardly into the conduit 12 and into the space 13, thence downwardly through the passages 15, grate 2 in a highly heated condition, thereby greatly facilitating combustion. It will be observed that the cold air which enters at 11 has only a short distance to travel to reach the space between the upper and lower plates 5b and 5c. rlhis results in the cooling of the cast iron plates of the night soil pan, thereby preventing them from burning out under intense heat. At the same time, it also tends to transfer heat to the upper side of the lire brick arch 4, thus conserving the heat which is abstracted from the iron plates of the night soil pan. l claim: 1. lln a crematory, a combustion chamber having an arched roof, a grate disposed at one slde of said combustion chamber, a on the other side of sai combustion chamber contiguous to said grate, a stack or chimney on that side of the furnace contiguous to said night soil pan,

Hues connecting said combustion chamberwith said stack, said filles extending under-n neath said night-soil pan, said night-soil pan being made of metal plates spaced apart, the upper plates having a thin refractory covering, means for `introducing air between said metal plates, and an outlet for the air from the space between the plates.

2. In a crematory, a furnace jacket, a combustion chamber having an arched roof spaced from said jacket, a grate disposed at one side of said combustion chamber, a night-soil pan disposed on the other side of said combustion chamber contiguous to said grate, a stack or chimney on that side of the furnace contiguous to said night soil pan, flues connecting said combustion chamber with said stack, said iues extending underneath said night-soil pan, said night-soil pan being made of metal plates spaced apart, the upper plates having a thin refractory covering, means for introducing air between said metal plates, said last named means comprising an air inlet communicating with the space between the plates, a vertically disposed air conduit communicating at its lower end with the space between the plates and at its upper end With the space between the arched roof and furnace jacket, 'and an outlet for the air from the roof space.

3. In a crematory, a furnace jacket, a

furnace contiguous to said night-soil pan, j

lues connecting said combustion chamber with said stack, said lues extending underneath said night-soil pan, said night-soil pan being made of metal plates spaced apart, the upper plates having a thin refractory covering, means for introducing air between said metal plates, said last named means comprising an air inlet communicating with the space between the plates, a vertically disposed air conduit communieating at its lower end with the space between the plates and at its upper end with the space between the arched roof and furnace jacket, and an air passage leading from the roof space to the space beneath the AUGUSTUS C. FELTON, Jn. 

